Aura Smallest Absolute Encoder Low Power Consumption High
Resolution
Aura Smallest Absolute Encoder low power consumption High
resolution
Aura is one of the smallest absolute encoders in the market with
the following features:
SMT package that integrates easily into an OEM PCB
High resolution and accuracy for precision control needs
Low power consumption for tight temperature budget application
Generous alignment tolerance for efficient assembly reduces
production cost
Built-in eccentricity compensation for improved accuracy and
production productivity
Comprehensive connectivity that meets industry standard interface
requirements; BiSS-C, SSI, SPI
ABZ (AqB plus index) allows an additional incremental operation for
lowest latency & communication redundancy
Aura is offered with both Rotary and Linear applications:
Small Rotary Scale (Aura-B): Available Now
Large Rotary Scales (Aura-C): Available Now
Linear Scales (Aura-C): Available Now
Custom scale sizes are available
Custom hub & scale assembly available
Optical Encoder Key Features
Optical Off-Axis Absolute Rotary Optical Encoder
Small, low power SMT package (9.0 x 7.0 x 1.2) mm
Resolution: > 18 to 22 bits
Interface: BISS-C, SSI, SPI
Built-in Calibration & Eccentricity Compensation
ABZ (AqB plus Index)
SmartPrecisionTM III intuitive software
Scales Rotary: 16.0 mm – 63.5 mm；Tailored scales up to OD 151.5 mm
available；Please inquire with Product Management for larger sizes
Optical Encoder Benefits:
Absolute position feedback
High resolution and accuracy
Ease of Integration (Wide Alignment Tolerance)
Scale eccentricity compensation
Low Power Dissipation (~250 mW)
Comprehensive connectivity
Custom Hub and Scale assembly available
Global application support to meet customer’s integration
challenges
Additional incremental data output
Optical Encoder Aura™ Specification
| Rotary | Linear |
| Dimensions | 9.0 x 7.0 x 1.2 (mm) |
| Interface | BiSS-C (20 MHz), SSI, SPI, ABZ |
| Resolution | 18 bits – 22 bits1 | ±12.5 to ±200nm2 |
| Latency | 5 µsec (BiSS-C) |
| Accuracy | ±0.01O (18.0mm) to ± 0.005O (63.5mm) | ±2µm |
| Repeatability | 1 LSB | < ±200nm |
| Speed | 83,721 rpm (18.0mm) | 50 m/s |
| Concentricity Tolerance | 50µm (18.0mm OD) - 100µm (63.5mm OD) | N/A |
| Input Voltage | 5 VDC +/- 0.5 |
| Supply Current | 45 mA, unterminated outputs |
| Operating Temperature | -20 to 85 OC |
| Weight | 1.5 (g) |
| Scales3 | 16 to 63.5 mm OD | 9 to 195mm4 |
Optical Encoder Aura™ Standard Scale Sizes
| Existing AuraTM Series Encoders (Aura-B) |
| Part Number | Description |
| AUR-R-B-0001-WP | Accurate Micro Resolution Absolute Encoder – OD 26 mm / ID 12 mm |
| AUR-R-B-0002-WP | Accurate Micro Resolution Absolute Encoder – OD 18 mm / ID 7 mm |
| AUR-R-B-0003-WP | Accurate Micro Resolution Absolute Encoder – OD 33 mm / ID 21 mm |
| Matched Scales |
| AUR-R-G-0001 | Aura Rotary Glass Scale, OD 26mm / ID 12mm, Optical Diameter
21.36mm, Thickness 2.29mm |
| AUR-R-G-0002 | Aura Rotary Glass Scale, OD 18mm / ID 7mm, Optical Diameter
14.40mm, Thickness 2.29mm |
| AUR-R-G-0003 | Aura Rotary Glass Scale, OD 33mm / ID21 mm, Optical Diameter
28.70mm, Thickness 2.29mm |
| New AuraTM Series Encoders (Aura-C) |
| Part Number | Description |
| AUR-R-C-0004-WP | Accurate Micro Resolution Absolute Encoder – OD 63.5 mm / ID 49 mm |
| AUR-R-C-0006-WP | Accurate Micro Resolution Absolute Encoder – OD 51.8 mm / ID 38 mm |
| AUR-L-C-0000-WP | Accurate Micro Resolution Absolute Encoder – Linear |
| Matched Scales |
| AUR-R-G-0004 | Aura Rotary Glass Scale, OD 63.5mm / ID 49mm Optical Diameter
59.20mm, Thickness 2.29mm |
| AUR-R-G-0006 | Aura Rotary Glass Scale, OD 51.8mm / ID 38mm Optical Diameter
49.20mm, Thickness 2.29mm |
| AUR-L-G-0001 | Aura Linear Glass Scale, L16mm, W10mm, 9mm working travel,
Thickness 2.29mm |
| AUR-L-G-0002 | Aura Linear Glass Scale, L57mm, W10mm, 50mm working travel,
Thickness 2.29mm |
| AUR-L-G-0004 | Aura Linear Glass Scale, L202mm, W10mm, 195mm working travel,
Thickness 2.29mm |
Optical Encoder Application area
